package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class LoginDemo {
    public static void main(String[] args)  {
        Scanner sca=new Scanner(System.in);
        System.out.println("欢迎登陆网站");
        System.out.println("请输入用户名");
        String username=sca.nextLine();
        System.out.println("请输入密码");
        String password=sca.nextLine();
        try (Connection con= DBUtil.getConnection();){
            Statement statement=con.createStatement();
            String sql="SELECT username,password,age "+
                       "FROM user "+
                       "WHERE username='"+username+ "' AND password ='"+password+"'";
            ResultSet res=statement.executeQuery(sql);
            if(res.next()){
                System.out.println("登陆成功");
            }else{
                System.out.println("登录失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
